Home / 18,627.90-27,948.75-6,782.61

Finding the Fourth Proportional to 18,627.90, 27,948.75 and 6,782.61

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Solution

The fourth proportional to 18,627.90, 27,948.75 and 6,782.61 is: 10,176.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,627.90 : 27,948.75 = 6,782.61 : x
  2. Step 2: Convert to fraction form
    18,627.90/27,948.75 = 6,782.61/x
  3. Step 3: Cross multiply
    18,627.90x = 27,948.75 × 6,782.61
  4. Step 4: Simplify right side
    18,627.90x = 189,565,437.32
  5. Step 5: Solve for x
    x = 189,565,437.32/18,627.90
  6. Step 6: Final answer
    x = 10,176.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.